Compressed metal joint and method of making the same



' Patented July 1933 CHARLES c. sunnnnmn, or nnw' nonnmnes sons COMPANY, or 'rnnn'ron, new JERSEY strain, forming the parallel laid cables of suspention are to provide BRUNSWICK, NEW JERSEY, ASSIGNOR TO JOHN A.

JERSEY, CORPORATION OF NEW ooimrnnssnn METAL .roin'r AND mn'rnonor MAKING m ni same Application filed Ianuary e, 1931. Serial no. 507,745.

- This invention relates to an improved wire connection of the type in which a sleeveis compressed down upon the two wire ends to be connected and is adapted especially for connecting the ends of wires under heavy. as for instance, wires to be used in sion bridges.

The especial objects of the presentinvenan improved method of making such connection which and efilcient and require no special care in its 7 making, and to provlde a novel form of consure in its formation,

construction embodying 1 scribed in detail and shall develop the full strength nection which of the wire and be: of highest efiic1ency.- A

further object of the invention is-the production of a connection requiring less prestherebymaterially reducing the wear on the of dies required. V

In the accompanying drawingforming a part of the specification, there is showna the invention in its referred form and this construction and the method of making it will now be dethe features forming the invention then'be specifically pointed out in the claims.

. completed joint;

beingformed on the opposing flattened. sides of the wire ends A, B. -A' sleeve or nipple C In the drawing: I Figure'l'is a view in sectional side elevation of the parts prior to compression of the connecting sleeve; 3 I Figures 2 and 3 are sections on, respectivelines 2 and 3 of Figure 1; Figure 4 is a sectional sid elevation of the Figures 5 and 6 are sections on, respectivelines 5 .and 6 of Figure 4. Referring to .-the' drawing, the wire ends A, -B, are provided respectively tions or projections erablyby forming threads therein by dies which also change the shape of the threaded portion of the wire ends slightly from their original circular form to oval form, as shown clearly. in Figures .3 and 6, the serrations '1 is then slippeduponthe wire ends A, B,

' andflthe wire ends vabutted. The-inner sur shall be cheap prevented by dies and the number include the end of with serra-' 1 of any kind, but pref- 1. "The method of compressing face'of' the sleeve C may beplain throughv out its length, but preferably the ends thereof, or that portion extending beyond the 1, of the respective wiresserrated portlons A, B, are provided with suitable serrations 2, as shown. The connection is now completed bycompressing the sleeve or nipple C in any suitable manner,'as by hydraulic pres-' sure or by sWaging,.so that sleeve C is looked upon the wire ends.

The turning of the wires-in the sleeve is the wires-in addition to the compression and serrations. The oval form also permits a flow of the metal of the sleeve and which reduces the pressure required. The

wires the oval form of a portion of ends of the wires outside the serrations 1 preferably are galvanized and the galvanizing not removed, the compression of the sleeve serrations into the galvanizing adding to the strength of the joint. The ovalform of the wires preferably extends through only,

the serrated portions, the rest of the wires being left round, and the cold working of the sleeveto the reduced diameter of these round portions of the wires results in shoulders or abutments on the wires at the ends of the serrated portions which aid in making a strong joint.

It will be understood that the invention is applicable to connecting any suitable terminal or device to a wire as well as conso I necti-ng the ends of two wires, and the term 'n the claims is intended to suchterminal or other device to be connected. It will be understood, also,

limited to the detail constructionsshown, but that modifications may be made therein wire ends used while retaining the invention defined by the claims.

1 What I claim is:

wire joint which consists in shaping to a that the invention is not to be making a compressed I connected, applying thereon a sleeve having its inner surface of different form from the wire ends and extending beyond the noncylindrical portions of the wire ends, and

' the sleeve upon the non-cylindrical portions of the wire ends and upon the wires beyond the non-cylindrical portions. i

2. A compressed wire joint having wires with their ends shaped to non-cylindrical form, and a sleeve extending over the noncylindrical portions of the wire ends and the portions beyond the non-cylindricalportions and compressed thereon to form interlocking shoulders between the sleeve and wire ends outside the non-cylindrical portions of the latter.

3. A compressed wire joint having wires with their ends shaped to non-cylindrical form, a sleeve extending over the non-cylindric-al portions of the Wire ends and the portions beyond the non-cylindrical portions and compressed thereon to form interwire ends a cylindrical sleeve extending over the oval portions of the wire ends and upon the wires beyond the oval portions and provided with suitable projections opposite the last named portions of the wire ends, and compressing said sleeve on both portions of the wire ends.

CHARLES C. SUNDERLAND. 

